HESI LPN
HESI Fundamentals Exam
1. A client with a history of diabetes mellitus is experiencing polyuria, polydipsia, and polyphagia. What is the most important action for the nurse to take?
- A. Monitor the client's blood glucose level.
- B. Encourage the client to increase fluid intake.
- C. Administer insulin as prescribed.
- D. Assess the client's urine output.
Correct answer: A
Rationale: The most critical action for the nurse to take when a client with diabetes mellitus presents with symptoms of hyperglycemia such as polyuria, polydipsia, and polyphagia is to monitor the client's blood glucose level. This action helps in assessing the client's current glycemic status and guides further interventions. Encouraging increased fluid intake (Choice B) may be beneficial in managing dehydration caused by polyuria, but it does not address the underlying cause of hyperglycemia. Administering insulin as prescribed (Choice C) may be necessary based on the blood glucose monitoring results, but monitoring should precede any medication administration. Assessing the client's urine output (Choice D) is important but does not directly address the primary concern of evaluating and managing hyperglycemia in a client with diabetes.
2. The client has been diagnosed with deep vein thrombosis (DVT). Which symptom would be most concerning?
- A. Pain in the affected leg
- B. Redness and warmth in the affected leg
- C. Shortness of breath
- D. Swelling in the affected leg
Correct answer: C
Rationale: Shortness of breath is the most concerning symptom in a client with deep vein thrombosis (DVT) because it could indicate a pulmonary embolism, a life-threatening complication where a blood clot travels to the lungs. This condition requires immediate medical attention. While pain, redness, warmth, and swelling in the affected leg are common symptoms of DVT, shortness of breath suggests a more critical situation that necessitates urgent intervention.
3. While interviewing a client, the nurse records the assessment in the electronic health record. Which statement is most accurate regarding electronic documentation during an interview?
- A. The client's comfort level is increased when the nurse maintains eye contact while typing notes into the record
- B. The interview process is hindered by electronic documentation and may disrupt the flow of conversation
- C. The nurse has limited ability to observe nonverbal communication while entering the assessment electronically
- D. Completing the electronic record during an interview is optional and not a legal obligation of the examining nurse
Correct answer: C
Rationale: The most accurate statement is that the nurse has a limited ability to observe nonverbal communication while entering the assessment electronically. This is because the nurse's focus is on typing or inputting data, which may lead to missing important nonverbal cues from the client. Choices A and B are incorrect as they do not address the limitation of observing nonverbal cues. Choice A is incorrect because breaking eye contact to type notes may hinder the client's comfort level. Choice B is incorrect because it states that electronic documentation enhances the interview process, which may not always be the case. Choice D is incorrect as completing the electronic record during an interview is typically a standard practice but not a legal obligation.
4. A client is being treated for diabetic ketoacidosis (DKA). Which laboratory value would be most concerning?
- A. Blood glucose of 350 mg/dL
- B. Serum bicarbonate of 18 mEq/L
- C. Arterial pH of 7.20
- D. Serum potassium of 5.5 mEq/L
Correct answer: C
Rationale: In a client with diabetic ketoacidosis (DKA), the most concerning laboratory value is an arterial pH of 7.20. An arterial pH of 7.20 indicates severe acidosis, which is a critical condition requiring immediate intervention. This pH level reflects a significant imbalance in the body's acid-base status, potentially leading to serious complications. High blood glucose levels (choice A) are expected in DKA but do not directly indicate the severity of acidosis. A serum bicarbonate level of 18 mEq/L (choice B) is low but not as immediately critical as a pH of 7.20. Serum potassium of 5.5 mEq/L (choice D) is elevated, which can occur in DKA due to insulin deficiency, but it is not the most concerning value in this scenario.
5. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
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